(fencing) A tool Employed in electric powered fencing to detect whether or not a weapon has struck an opponent, which connects to some fencer's weapon by a spool and overall body wire. It uses lights and seem to inform successful, with various coloured lights for on goal and off goal https://gabletoppak.com/india-leads-in-generating-plastic-waste-with-10-2-mn-tonnes-a-year-study/